Need help with some math.
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Need help with some math.

[From: ] [author: ] [Date: 12-10-17] [Hit: ]
00b. 319.99c. 321.99d. 329.......
Need help with some more math.?

13. Everything in a store is 20% off for one day only. If a computer normally osts $399.99, what is the sale price, rounded to the nearest cent?
a. 308.00
b. 319.99
c. 321.99
d. 329.79


15. Jerry makes a purchase that allows him to spread the payments over time. The total purchase is $1,200.00. He makes a 25% down payment, and then pays the rest in three equal, interest-free monthyly installments. How much is each monthyly installment?
a. 200.00
b. 233.33
c. 250.00
d. 300.00


Did i do this one right?
16. Quartz crystals are being sold by weight for 18 1/2 cents per gram. What is the cost of a crystal weighing 44 grams?
a. 2.58
b. 6.14
c. 8.14
d. 8.58

I chose c

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13. 399.99*.20=319.99
B

15. 1,200*.25=300
1,200-300=900
900/3=300
D

16. 18.5*44=814
814/100=8.14
C

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13)b 15) d 16) c
1
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